Talk:Astraea/@comment-24053170-20191017184041

Astraea doesn't appear in Plunderer. Either on the cover of the volumes or the actual manga.

All you posted was a reference/sight gag, not an actual on-screen cameo by the characters themselves.

a reference does not count as an example of the characters actually appearing in person, that example is more like a sticker or keychain that just happens to look like one of the characters but isn't actually them,

So its not valid trivia.